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Which of the following places these events in the correct chronological order from left to right? Lincoln-Douglass Debates; Election of 1860; Secession of Confederate States; Gettysburg Address Lincoln-Douglas Debates; Secession of Confederate States; Election of 1860; Gettysburg Address Election of 1860; Secession of Confederate States; Lincoln-Douglass Debates; Gettysburg Address Election of 1860; Lincoln-Douglass Debates, Gettysburg Address; Secession of Confederate States